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El anillo conoce al martillo by Whynotman 234 reviews
La humanidad, la especie que debió de enfrentar a una amenaza compuesta por múltiples especies unidas por una religión, enfrentando a la muerte de frente y luchando una y otra vez contra la aniquilación. Pero esta vez no será como siempre, un extraño recién llegado llego a la mesa, mas retrograda y terrible que la alianza. La humanidad se enfrentara a si misma en una forma extraña.
Crossover - Warhammer & Halo - Rated: T - Spanish - Adventure/Sci-Fi - Chapters: 7 - Words: 11,432 - Reviews: 16 - Favs: 19 - Follows: 19 - Updated: 3/10 - Published: 1/9
Different Realities by Blue-Jay1009 reviews
As the Autobots and Decepticon stumble across a strange device that is of unknown origin. As one of their human friends accidentally activates the device it transports the two wagering factions and humans into a different universe where they landed on a dead planet that belongs to an advanced humanity a few years prior to the war with the covenant been over.
Crossover - Transformers/Beast Wars & Halo - Rated: T - English - Drama/Adventure - Chapters: 5 - Words: 8,150 - Reviews: 7 - Favs: 47 - Follows: 61 - Updated: 3/9 - Published: 1/4 - Bumblebee, Optimus Prime, Master Chief/John-117, Cortana
Operation Unusual Paperwork by kpmh2001 reviews
A side story containing all of the story exerpts, post chapter nonsense, and omakes that the world of The Men From Onyx has to offer, now in one convenient package! Warning: The tone and intention of these short stories will change on a by-chapter basis, tonal consistency is effectively not a consideration.
Crossover - Halo & RWBY - Rated: T - English - Parody/Humor - Chapters: 27 - Words: 96,301 - Reviews: 130 - Favs: 80 - Follows: 90 - Updated: 3/9 - Published: 10/4/2019
Covered In Black Ink by ClassicSix reviews
The official report says Noble Six had gone missing in action after the battle on Reach. However the unofficial report? Being recovered by the Office of Naval Intelligence B-312 is reassigned as the most dangerous asset the Office as to offer. His mission, to cover up an experimental Project previously funded by ONI. But what other secrets are hidden underneath all this black ink?
Crossover - Halo & Red vs. Blue - Rated: T - English - Adventure/Drama - Chapters: 7 - Words: 51,390 - Reviews: 48 - Favs: 202 - Follows: 244 - Updated: 3/8 - Published: 12/17/2019 - SPARTAN-B312/Noble Six, Carolina, Tex/Allison, Wash
UNSC: Victory or Valhalla by 918273meta reviews
The UNSC- Till Valhalla A phoenix class colony ship refitted for military service is destroyed over the planet reach and now finds herself surrounded by unknown enemies in another universe
Crossover - Halo & KanColle - Rated: M - English - Sci-Fi - Chapters: 1 - Words: 992 - Reviews: 6 - Favs: 15 - Follows: 19 - Published: 3/8
Fate Grand Order: Hero of the future by RobertQuasar reviews
Master Chief had died and was remembered as the finest warrior humanity ever produced and would be remembered centuries after his death. However he is called to the past to save humanity from total extinction. Shouldn't be too hard it's just another mission to save humanity. Rated M just in case
Crossover - Halo & Fate/stay night - Rated: M - English - Adventure/Supernatural - Chapters: 8 - Words: 58,680 - Reviews: 215 - Favs: 434 - Follows: 572 - Updated: 3/7 - Published: 12/6/2021 - Master Chief/John-117, Cortana, Mashu/Shielder, Gudako
Final Frontier by Cipher32 reviews
For us the storm has passed, it's time to honor those who never return in this dreadful voyage. As human carved their loved ones' names to a stone pillar of remembrance, they carved ours' into their hearts as an utmost symbol of gratitude, and in them we would never be forgotten amidst time for it is the greatest way they honor us. UNSC Enterprise, requesting immediate recovery.
Crossover - Halo & Azur Lane/碧蓝航线 - Rated: T - English - Sci-Fi/Adventure - Chapters: 12 - Words: 158,404 - Reviews: 180 - Favs: 456 - Follows: 594 - Updated: 3/7 - Published: 1/21/2020 - OC, Enterprise, Cleveland, Vestal
Wonderful Life by Zedkaii
El arma mas letal de la ONI intenta encontrar su lugar en un nuevo mundo, sus acciones moldearan su destino y el de otros, pero siendo el quien toma las decisiones... ¿Tomara las correctas?.
Crossover - Halo & My Hero Academia/僕のヒーローアカデミア - Rated: T - Spanish - Adventure/Hurt/Comfort - Chapters: 1 - Words: 6,728 - Favs: 4 - Follows: 5 - Published: 3/6 - SPARTAN-B312/Noble Six
The Spartans of the Astartes by TheExiledStoryTeller reviews
After the battle of Chi Ceti IV, the Covenant Ship explodes and creates a Warp rift that drags in the UNSC Commonwealth. The Commonwealth then crashes on an Imperial planet infested with Orks. The Spartans being the only survivors are rescued from certain doom by the Deathwatch and the males, having impressed the Watch Captain are recruited into the Adeptus Astartes.
Crossover - Warhammer & Halo - Rated: M - English - Sci-Fi - Chapters: 6 - Words: 34,561 - Reviews: 40 - Favs: 88 - Follows: 104 - Updated: 3/5 - Published: 12/23/2021 - Primarch/s, Master Chief/John-117, Gravemind, Librarian
The Reclaimer of Mandalore by UNSC indomitable reviews
Having been awoken by his faithful companion. The Master Chief and Cortana find themselves in an unknown galaxy. Knowing the only way to survive is to remain under the radar. But in a galaxy gripped by war, such a thing was never going to be easy. As the Chief try's to up hold the status quo in the ever changing world of Mandalore, as the galaxy slowly torn apart around them.
Crossover - Star Wars & Halo - Rated: T - English - Sci-Fi - Chapters: 7 - Words: 39,725 - Reviews: 203 - Favs: 586 - Follows: 858 - Updated: 3/4 - Published: 11/25/2020 - OC, Master Chief/John-117, Cortana
Remnants of a Spartan by playererror404 reviews
Noble Six thought her life was over, she thought she Reach was gonna be her last stand. She was wrong, now she's fighting monsters with super powered teenagers... On top of that she's younger and has no clue whats going on.
Crossover - Halo & RWBY - Rated: T - English - Adventure - Chapters: 116 - Words: 296,264 - Reviews: 517 - Favs: 469 - Follows: 448 - Updated: 3/3 - Published: 11/17/2017 - SPARTAN-B312/Noble Six, Team RWBY, Team CFVY - Complete
Voltron Spartan Defendors by Codey-Wraith reviews
Who would you want to control Voltron? A soldier that protects those around them or a power hungry madman? Follow the Master Chief, and his allies as they assemble Voltron to defeat those who threaten the universe.
Crossover - Halo & Voltron: Legendary Defender - Rated: M - English - Sci-Fi/Fantasy - Chapters: 7 - Words: 39,375 - Reviews: 31 - Favs: 83 - Follows: 108 - Updated: 3/1 - Published: 3/30/2018 - Master Chief/John-117, Cortana, Princess Allura
From Domination to Genocide V2 by InnocentBlaze686 reviews
4000 years before Darth Vader, there was Mandalore the Preserver, who mysteriously disappeared from the galaxy. With the death of Chancellor Palpatine during his attempted kidnapping, the Republic seeks a new advantage over the CIS, which comes in the form of the newly found Mandalore. But something draws the Jedi away from the Republic: the screams of those suffering genocide.
Crossover - Star Wars & Halo - Rated: T - English - Sci-Fi/Adventure - Chapters: 13 - Words: 52,656 - Reviews: 357 - Favs: 446 - Follows: 565 - Updated: 3/1 - Published: 1/23/2016
Final Frontier by Richard Scepton reviews
The Abyssals. They pushed us back. They pushed us back to the limit. The Covenant. They commited genocide on us. And we will push back. Final Frontier. No matter what, we will push through. Humanity depends on us. Both humanities depend on us. Us. And we will advance without falter.
Crossover - Halo & Kantai Collection - Rated: T - English - Sci-Fi/Hurt/Comfort - Chapters: 11 - Words: 26,793 - Reviews: 14 - Favs: 53 - Follows: 77 - Updated: 2/27 - Published: 6/5/2021 - Hiei, Fubuki, Hibiki/Верный, Amatsukaze
Battle of Naboo by The Client reviews
UNSC and Trade federation battle for Naboo
Crossover - Halo & Star Wars - Rated: T - English - Sci-Fi - Chapters: 1 - Words: 311 - Reviews: 4 - Favs: 3 - Follows: 4 - Published: 2/27
Mass effect: the Jaded ones by Ray SK reviews
A UNSC Human-covenant war-era battle group led by a Punic class supercarrier is introduced to a new galaxy. One where people are xenophilic, use to times of peace and harmony, and against disrupting the Status Quo. What will an extremely aggressive xenophobic and battle-hardened human faction add to the mix? and will their addition change the future of this galaxy. (No Spartans)
Crossover - Halo & Mass Effect - Rated: M - English - Adventure/Humor - Chapters: 2 - Words: 8,237 - Reviews: 25 - Favs: 76 - Follows: 125 - Updated: 2/25 - Published: 2/6 - E. Buck, OC
Immortal Galaxies by Lighting wolf knight reviews
An escape from an overrun galaxy lands them in another galaxy? What does being the biggest fish in the water gain you in a world without heavy hitters? Rated T for violence, death, and profanity.
Crossover - Halo & Mass Effect - Rated: T - English - Romance/Adventure - Chapters: 3 - Words: 4,777 - Reviews: 8 - Favs: 66 - Follows: 107 - Updated: 2/25 - Published: 11/11/2021 - [OC, Vetra N.] T. Hood
The Guiding Fire by UNSC indomitable reviews
A Commander striped of authority. The world divide and falling. Last fading light. Hope lays in Spirit and might. As those with the fire lay dying. All must stand fast in the face howling night.
Crossover - Halo & Azur Lane/碧蓝航线 - Rated: T - English - Sci-Fi/Adventure - Chapters: 8 - Words: 42,949 - Reviews: 63 - Favs: 127 - Follows: 193 - Updated: 2/24 - Published: 7/22/2020 - J. Cutter, Belfast, OC
Why use Spartans when you have Tactical Dolls? by Yui Yuria reviews
The Spartans hated them, they were A.I. but competing with the Spartans. The ODST that knew about them were terrified of them, and even ONI did not really feel comfortable with them. Tactical Dolls were not normal A.I. as far as the UNSC understood it, certainly their programming had removed rampancy from UNSC A.I. but these A.I. had bodies. (Prologue has been totally rewritten)
Crossover - Halo & Girls' Frontline/少女前线 - Rated: M - English - Sci-Fi - Chapters: 4 - Words: 8,257 - Reviews: 15 - Favs: 23 - Follows: 30 - Updated: 2/24 - Published: 9/12/2021 - C. Halsey, Kalina
Were it So Easy by Sigma0327 reviews
Six's life was a giant war. Every battle was a test of sheer tenacity and stubbornness against insurmountable odds. Every moment, every bullet fired, every Covenant, Insurrectionist, and Flood spore killed has led up to his last fight. Once again he was one of the few that stood between Earth and her enemies. This would be his final battle, and nothing could change that, right?
Crossover - Halo & Mass Effect - Rated: T - English - Adventure/Sci-Fi - Chapters: 5 - Words: 45,863 - Reviews: 77 - Favs: 482 - Follows: 711 - Updated: 2/23 - Published: 11/9/2020 - SPARTAN-B312/Noble Six, Tali'Zorah, Miranda L., Shepard
The Way by Twisted Fate MK 2 reviews
Ever since the fall of the Covenant, the Arbiter has sought one thing. A path to redeem himself of his past sins. Waking up on a strange world does nothing to change that goal. Though it does add some complications to it, in the form of the bestial Grimm and strange children. But if the gods wish him here, then he shall see their desires through.
Crossover - Halo & RWBY - Rated: T - English - Adventure/Mystery - Chapters: 43 - Words: 190,601 - Reviews: 635 - Favs: 910 - Follows: 1,157 - Updated: 2/23 - Published: 12/27/2019 - Master Chief/John-117, Arbiter, Ruby R., Weiss S.
Halo: Avengers by IX404 reviews
For three years, everyone had assumed that the Master Chief was MIA. Little did they know was that he would not only return home, but become involved in a mission that would save another universe from destruction.
Crossover - Halo & Marvel's Avengers - Rated: T - English - Sci-Fi/Adventure - Chapters: 10 - Words: 57,570 - Reviews: 80 - Favs: 235 - Follows: 270 - Updated: 2/22 - Published: 1/7 - Master Chief/John-117, Cortana, Kamala K., Tony S.
On the Illusion of Might by evevee reviews
We thought ourselves powerful, able to conquer a galaxy with nothing but toys. When we overcame every challenge, breached the space between the galaxies themselves, what use were the words of a race ashamed of their own past? Yet we cannot deny that we were warned, for while a challenge to a human is laughable, a challenge to humanity is a death sentence.
Crossover - Halo & Mass Effect - Rated: M - English - Sci-Fi - Chapters: 26 - Words: 287,962 - Reviews: 1956 - Favs: 3,497 - Follows: 4,442 - Updated: 2/21 - Published: 2/21/2017 - Master Chief/John-117, Cortana, Garrus V., Shepard
spartan returns home by phoenix emperor 23 reviews
injured on a mission the first son of minato and kushina. he found something that put him in a war he never thought was possible. on his final mission on reach he chose to be behind. with the wider of the UNSC and ONI thought he died on reach. he had a chance to go back. now he must defended his family and the woman he love from the shadows. even it means the world to think he dead
Crossover - Halo & Naruto - Rated: M - English - Romance - Chapters: 3 - Words: 10,087 - Reviews: 2 - Favs: 34 - Follows: 53 - Updated: 2/20 - Published: 11/1/2021 - [SPARTAN-B312/Noble Six, Hana I.] [Minato N., Kushina U.]
HALO Mass convergence by SapphireDawn11709 reviews
Two Universe collide after the Forerunners fall and the Reapers return, will the two branches of Humanity placed in their respective Systems by a Forerunner Monitor unite or fall, only time will tell in this epic clash. When the UNSC Exploration and Research Vessel Light of Sol discover a strange artifact, they are opened up to the rest of the Galaxy after millennia of isolation.
Crossover - Halo & Mass Effect - Rated: M - English - Sci-Fi - Chapters: 23 - Words: 79,389 - Reviews: 302 - Favs: 664 - Follows: 848 - Updated: 2/20 - Published: 9/18/2016 - Master Chief/John-117, Cortana, J. Garson, Tali'Zorah
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